e5b335d367
Godot supports many different compilers and for production releases we have to support 3 currently: GCC8, Clang6, and MSVC2017. These compilers all do slightly different things with -ffast-math and it is causing issues now. See #24841, #24540, #10758, #10070. And probably other complaints about physics differences between release and release_debug builds. I've done some performance comparisons on Linux x86_64. All tests are ran 20 times. Bunnymark: (higher is better) (bunnies) min max stdev average fast-math 7332 7597 71 7432 this pr 7379 7779 108 7621 (102%) FPBench (gdscript port http://fpbench.org/) (lower is better) (ms) fast-math 15441 16127 192 15764 this pr 15671 16855 326 16001 (99%) Float_add (adding floats in a tight loop) (lower is better) (sec) fast-math 5.49 5.78 0.07 5.65 this pr 5.65 5.90 0.06 5.76 (98%) Float_div (dividing floats in a tight loop) (lower is better) (sec) fast-math 11.70 12.36 0.18 11.99 this pr 11.92 12.32 0.12 12.12 (99%) Float_mul (multiplying floats in a tight loop) (lower is better) (sec) fast-math 11.72 12.17 0.12 11.93 this pr 12.01 12.62 0.17 12.26 (97%) I have also looked at FPS numbers for tps-demo, 3d platformer, 2d platformer, and sponza and could not find any measurable difference. I believe that given the issues and oft-reported (physics) glitches on release builds I believe that the couple of percent of tight-loop floating point performance regression is well worth it. This fixes #24540 and fixes #24841
185 lines
7.7 KiB
Python
185 lines
7.7 KiB
Python
import os
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import string
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import sys
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from methods import detect_darwin_sdk_path
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def is_active():
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return True
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def get_name():
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return "iOS"
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def can_build():
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if sys.platform == 'darwin' or ("OSXCROSS_IOS" in os.environ):
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return True
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return False
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def get_opts():
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from SCons.Variables import BoolVariable
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return [
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('IPHONEPATH', 'Path to iPhone toolchain', '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain'),
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('IPHONESDK', 'Path to the iPhone SDK', ''),
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BoolVariable('game_center', 'Support for game center', True),
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BoolVariable('store_kit', 'Support for in-app store', True),
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BoolVariable('icloud', 'Support for iCloud', True),
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BoolVariable('ios_exceptions', 'Enable exceptions', False),
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('ios_triple', 'Triple for ios toolchain', ''),
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]
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def get_flags():
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return [
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('tools', False),
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]
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def configure(env):
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## Build type
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if (env["target"].startswith("release")):
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env.Append(CPPFLAGS=['-DNDEBUG', '-DNS_BLOCK_ASSERTIONS=1'])
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Append(CPPFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer'])
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env.Append(LINKFLAGS=['-O2'])
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else: #optimize for size
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env.Append(CPPFLAGS=['-Os', '-ftree-vectorize'])
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env.Append(LINKFLAGS=['-Os'])
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if env["target"] == "release_debug":
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env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
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elif (env["target"] == "debug"):
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env.Append(CPPFLAGS=['-D_DEBUG', '-DDEBUG=1', '-gdwarf-2', '-O0', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
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if (env["use_lto"]):
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env.Append(CPPFLAGS=['-flto'])
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env.Append(LINKFLAGS=['-flto'])
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## Architecture
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if env["arch"] == "x86": # i386
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env["bits"] = "32"
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elif env["arch"] == "x86_64":
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env["bits"] = "64"
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elif (env["arch"] == "arm" or env["arch"] == "arm32" or env["arch"] == "armv7" or env["bits"] == "32"): # arm
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env["arch"] = "arm"
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env["bits"] = "32"
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else: # armv64
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env["arch"] = "arm64"
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env["bits"] = "64"
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## Compiler configuration
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# Save this in environment for use by other modules
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if "OSXCROSS_IOS" in os.environ:
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env["osxcross"] = True
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env['ENV']['PATH'] = env['IPHONEPATH'] + "/Developer/usr/bin/:" + env['ENV']['PATH']
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compiler_path = '$IPHONEPATH/usr/bin/${ios_triple}'
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s_compiler_path = '$IPHONEPATH/Developer/usr/bin/'
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ccache_path = os.environ.get("CCACHE")
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if ccache_path is None:
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env['CC'] = compiler_path + 'clang'
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env['CXX'] = compiler_path + 'clang++'
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env['S_compiler'] = s_compiler_path + 'gcc'
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else:
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# there aren't any ccache wrappers available for iOS,
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# to enable caching we need to prepend the path to the ccache binary
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env['CC'] = ccache_path + ' ' + compiler_path + 'clang'
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env['CXX'] = ccache_path + ' ' + compiler_path + 'clang++'
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env['S_compiler'] = ccache_path + ' ' + s_compiler_path + 'gcc'
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env['AR'] = compiler_path + 'ar'
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env['RANLIB'] = compiler_path + 'ranlib'
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## Compile flags
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if (env["arch"] == "x86" or env["arch"] == "x86_64"):
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detect_darwin_sdk_path('iphonesimulator', env)
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env['ENV']['MACOSX_DEPLOYMENT_TARGET'] = '10.9'
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arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
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env.Append(CCFLAGS=('-arch ' + arch_flag + ' -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK -mios-simulator-version-min=10.0 -DCUSTOM_MATRIX_TRANSFORM_H=\\\"build/iphone/matrix4_iphone.h\\\" -DCUSTOM_VECTOR3_TRANSFORM_H=\\\"build/iphone/vector3_iphone.h\\\"').split())
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elif (env["arch"] == "arm"):
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detect_darwin_sdk_path('iphone', env)
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env.Append(CCFLAGS='-fno-objc-arc -arch armv7 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -isysroot $IPHONESDK -fvisibility=hidden -mthumb "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -miphoneos-version-min=10.0 -MMD -MT dependencies'.split())
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elif (env["arch"] == "arm64"):
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detect_darwin_sdk_path('iphone', env)
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env.Append(CCFLAGS='-fno-objc-arc -arch arm64 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -fvisibility=hidden -MMD -MT dependencies -miphoneos-version-min=10.0 -isysroot $IPHONESDK'.split())
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env.Append(CPPFLAGS=['-DNEED_LONG_INT'])
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env.Append(CPPFLAGS=['-DLIBYUV_DISABLE_NEON'])
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if env['ios_exceptions']:
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env.Append(CPPFLAGS=['-fexceptions'])
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else:
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env.Append(CPPFLAGS=['-fno-exceptions'])
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## Link flags
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if (env["arch"] == "x86" or env["arch"] == "x86_64"):
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arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
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env.Append(LINKFLAGS=['-arch', arch_flag, '-mios-simulator-version-min=10.0',
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'-isysroot', '$IPHONESDK',
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'-Xlinker',
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'-objc_abi_version',
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'-Xlinker', '2',
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'-F$IPHONESDK',
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])
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elif (env["arch"] == "arm"):
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env.Append(LINKFLAGS=['-arch', 'armv7', '-Wl,-dead_strip', '-miphoneos-version-min=10.0'])
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if (env["arch"] == "arm64"):
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env.Append(LINKFLAGS=['-arch', 'arm64', '-Wl,-dead_strip', '-miphoneos-version-min=10.0'])
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env.Append(LINKFLAGS=['-isysroot', '$IPHONESDK',
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'-framework', 'AudioToolbox',
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'-framework', 'AVFoundation',
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'-framework', 'CoreAudio',
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'-framework', 'CoreGraphics',
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'-framework', 'CoreMedia',
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'-framework', 'CoreMotion',
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'-framework', 'Foundation',
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'-framework', 'GameController',
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'-framework', 'MediaPlayer',
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'-framework', 'OpenGLES',
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'-framework', 'QuartzCore',
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'-framework', 'Security',
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'-framework', 'SystemConfiguration',
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'-framework', 'UIKit',
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])
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# Feature options
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if env['game_center']:
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env.Append(CPPFLAGS=['-DGAME_CENTER_ENABLED'])
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env.Append(LINKFLAGS=['-framework', 'GameKit'])
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if env['store_kit']:
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env.Append(CPPFLAGS=['-DSTOREKIT_ENABLED'])
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env.Append(LINKFLAGS=['-framework', 'StoreKit'])
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if env['icloud']:
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env.Append(CPPFLAGS=['-DICLOUD_ENABLED'])
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env.Append(CPPPATH=['$IPHONESDK/usr/include',
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'$IPHONESDK/System/Library/Frameworks/OpenGLES.framework/Headers',
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'$IPHONESDK/System/Library/Frameworks/AudioUnit.framework/Headers',
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])
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env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
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env.Append(CPPPATH=['#platform/iphone'])
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env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DMPC_FIXED_POINT', '-DCOREAUDIO_ENABLED'])
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# TODO: Move that to opus module's config
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if 'module_opus_enabled' in env and env['module_opus_enabled']:
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env.opus_fixed_point = "yes"
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if (env["arch"] == "arm"):
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env.Append(CFLAGS=["-DOPUS_ARM_OPT"])
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elif (env["arch"] == "arm64"):
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env.Append(CFLAGS=["-DOPUS_ARM64_OPT"])
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